Combing-machine.



UNITED STATES PATENT OFFICE.

GERMANY, AssIGNoRs To SOCIT ALSACIENNEDE CONSTRUC- TIoNs MEoAmoUEs, or MULHAUSEN, GERMANY, A FIRM.

oogMBlNc-MACHINE.

sPEcrrrcArIoN forming part of Letters Patent N0. 71 2,222, dated. October 28, 1902.

Application led April 2,1902. Serial No. lOl-,037; (Nomodel.)

To @ZZ whom it may concern.- y

Be it known that we, ALFRED WENNING and CHARLES HUmJRr- GEGAUEE, subjects ofA the Emperor of Germany, and residents of Mlhausen, Alsace,Empire of Germany, have invented certain newi and useful Improvements in Combing-Mac'hines, of which the following is a full, clear, and exact specification.

In the known Heilmann combing-machines, where the motion of the supplying-nippers is vertical or approximately vertical to the circumference of the comb-cylinder, there is the drawback that it is not possible to give the nippers for the combing the desiredV proximity to the comb-cylinder as soon as the machine acquires a greater speed.- It is especially the vibratory movements of the shaft bearing the cam-disk and the resultant Wear `on this cam which prevent the nippers being brought close to the combing-cylinder. In order to obviate this defect, according to the present invention a mechanism is interposed between the upper jaw of the nippers to be driven and the driving-cam, which mechanism is constructed so that it assumes a deadpoint position in the position in which the combing is to take place, and consequently trifling variations in the position of the driving-eccentric do not cause any alteration in the position of the nippers.

Figures 1 and 2 of the accompanying drawings show, respectively, two different positions of the mechanism hitherto used for actuating the nippers. These figures are employed for the purpose of illustrating the difference between the former or known construction and the novel construction illustrated in the remaining gures of the drawings. Figs. 3 and 4 illustrate the new actuating mechanism in two positions. Fig. 5 shows a modification thereof.

In combing-machines hitherto known (see Figs.- l and 2) the nippers were operated by setting the lever b, bearing the upper jaw ct,-

in oscillating motion directly from a cam c. The lever e, bearing the lower jaw d, is controlled by the spring f, which tends to keep x the nippers closed. If the machine works at great speed, it is impossible to avoid the shaft g, bearing the cam c, acquiring a vibratory motion, which 'during the combing is transmitted to the nippers a d, so that the latter strike against the spikes of the comb-cylinder and injure it unless the distance at which the nippers approach the comb-cylinder be made correspondingly greater initially. This distance increases still more when the cam o and the roller h, rolling thereon, have become worn, whereby undulating motions 0ccur, which increase the risk of damage. Vibratory motions are further produced by lthe upper jawa when the nippers close, striking violently against lthe lower jaw d, resting against the stopping-screw t'. As this blow takes place shortly before the nippers are moved close to the comb-cylinder, the vibrations caused by the jar also affect the combing.

In the new device, Figs. 3 and 4the cam c does not act directly on the nipper-lever b, but on an arm 7c, pivoted on a fixed pivot j, which armis firmly connected with a second arm l, which is pivotally connected bymeans of a bar m with the lever b. A third arm fn is iirmly connected with the arms 7a and Z, which engages with a pusher-bar o. This pusherbar 0 has a collarp and engages with its free end in a socket q, pivotally arranged on the end of the nipper-lever e.

In the position shown in Fig. 3, in which the combing is effected, the cam c acts with its largest radius on the arm lo, the togglejoint formed by the parts l and m is extended, `and the nippers are as close as possible to thecomb-cylinder. If now vibratory movements of the shaft occur which are transmitted by the cam c to the roller h and arm lo they cannot aifect the Alever b, and consequently the nipper-jaw o, as the distance of the end of the lever b from the shaftj cannot be increased. Moreover, it is impossible for the vibratory motions of the shaft g to affect the nearer approach of the nippers to the comb-cylinder, as the movement of the arm Z by the said vibratory motion is too slight to 'transmit any amount of the motion to the lever b. Moreover, the undulating movements which are caused owing to the wear between the parts c and h cannot, therefore, be transmitted to the nippers.

When the nippers close-that is, on the device moving out of the position shown in Fig. 4 into that shown in Fig. -the arm n revolves with the arm 7a to the right. The collarp on the bar o thereby moves upward and presses up the socket q, so that the lever e carries out such a swinging motion that the jaw d moves down. Itis therefore impossible for the upper jaw when it moves down to strike violently against the lower jaw, as it has to move after the latter in order to effect the closing of the nippers. When the nippers are closed, the socket g raises itself from the collar p, so that during the combing the lever e, and consequently the lower nipper-jaw, remains unaffected by the vibratory movements transmitted to the arm fn. When the nippers open, the socket q again moves without any jar on the collar j), as the two parts move hereby in the same direction, but with different speed.

In the modification shown in Fig. 5 the toggle-joint m l is replaced by a roller r and a cam s, which at its highest part t is rounded oit into the are of a circle. This form of the cam s equally insures against the shaking motions of the parts g, c, and 7c being able to be transmitted to the lever b. The compulsory movement of the lever c for avoiding the jar when the nippers close can be effected in anysuitable manner that may be preferred. For instance, it can be produced by a cam u acting directly on the end of the lever e. When the nippers are closed and have moved close to the comb-cylinder, the free end of the lever is raised from the cam u, while the springf holds the nippers closed.

In the constructions illustrated it is assumed that the pivot t* for the uipper-jaw levers b e is firmly fixed in the frame. The invention, however, also admits of being applied with advantage to machines in which said pivot is movable in a horizontal or vertical direction. Also to avoid the jar when closing the nippers the closing motion can be imparted separately to each of the jaws.

l. Adevice foroperatingthe supplying-nippers of a Heilmann combing-machine, comprising the Dipper-jaws, a driving-cam for the upper nipper-jaw, and locking mechanism between the latter and said cam which assumes a dead-point position when the nippers approach the comb-cylinder, substantially as and for the purposes set forth.

2. A device for operating the supplying-nippers of a HeilmannV combing-machine, comprising the nipper-jaws, a driving-cam for the upper jaw, a locking mechanism between said jaw and cam which assumes a dead-point position when the nippers approach the combcylinder, and a mechanism which imparts a movement to the lower jaw in the same' direction as, but slower than that of the upper jaw, when the nippers close.

3. A device for operating the su pplyin g-nippers of a Heilmann combing-machine, comprising the nipper-jaws, a driving-cam for the upper jaw, and a toggle-joint connected with said jaw and actuated by said cam, said toggle-joint being extended when the nippers are in the combing position.

4. A device for operating the supplying-nippers of a Heilmann combing-machine, comprising the Dipper-jaws, a driving-cam for the upper jaw, locking mechanism between the latter and said cam which, when the nippers are close to the comb-cylinder, assumes a dead-point position, a spring controlling the lower jaw, a lever movable with said intermediate mechanism, and a pusher-bar between said lever and the lower jaw, and ac*- ing on the latter against said spring, whereby said lower jaw moves in the same direction as the upper jaw but at less speed.

Adeviceforoperatingthesupplying-nippers of a Heilmann combing-machine, comprising the nipper-jaws, a driving-cam for the upper jaw, a toggle-joint, one part of which is coupled to the upper jaw and the other part to a pivot, a lever-arm on said pivot, which arm is under the direct control of said cam, a second lever-arm on said pivot, a pusher-barcoupled to this second lever-arm, which bar extends loosely through a socket on the lower jaw and is provided with a pusher-collar, and a draw-spring which acts on the lower jaw and tends normally to close it, substantially as set forth.

In witness whereof we have hereunto signed our names, this 19th day of March, 1902, in the presence of two subscribing witnesses.

ALFRED WENNING. CHARLES HUBERT GEGAUFF.

Witnesses:

Guo. GIFFORD, AMAND RITTER.

IOO 

